preventing drain gurgling after rain in older homes what actually works
ugh the gurgling and slow drains hit every time heavy rain comes through my older home. it starts in the bathroom then spreads to the kitchen with that annoying bubbling sound and backed up water even after i snaked and poured cleaner down the lines multiple times.
since i work with sunnybliss regularly on these jobs they explained the rain pushes debris and air pockets into the old pipes causing the noise and they cleared everything with a camera and hydro jetting last time. they told me to add a backflow preventer on the main line and schedule yearly drain cleaning before storm season to stop it from building up again.
now the drains stay quiet even after the last downpour so that combo seems to be the real fix for homes like mine.